This commit ports versions to clang-r339409b and utilizes
`libclang-cxx.so`.
Bug: 113263746
Test: ./bionic/tools/versioner/run_tests.py
Change-Id: Ib104a6c8c2c69df51cfa2760dbca125f4cfa054b
Add a clang-based tool to inspect header availability attributes and
verify them against the NDK platform definitions.
Bug: http://b/28178111
Change-Id: I1bb1925a620e98cc9606cb5a3360b1224c700bd0